81446094 has 32 divisors (see below), whose sum is σ = 187236000. Its totient is φ = 26212032.

The previous prime is 81446087. The next prime is 81446119. The reversal of 81446094 is 49064418.

It is a happy number.

81446094 is a `hidden beast` number, since 8 + 1 + 44 + 609 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24439 + ... + 27570.

It is an arithmetic number, because the mean of its divisors is an integer number (5851125).

Almost surely, 2^81446094 is an apocalyptic number.

81446094 is an abundant number, since it is smaller than the sum of its proper divisors (105789906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81446094 is a wasteful number, since it uses less digits than its factorization.

81446094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52049 (or 52043 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 81446094 is about 9024.7489715781. The cubic root of 81446094 is about 433.4677123017.

The spelling of 81446094 in words is "eighty-one million, four hundred forty-six thousand, ninety-four".